Reinforced-paper article.



P. POETSCHKE.

REINFORCED PAPER ARTICLE.

APPLICATION HLED NOV 5. \sn.

1,274,323. Patented July 30, 1918.

zu'nruin:

Jaul PaetsM/(e PATENT OFFICE.

PAUL POE'ISCH'KE, 3F MILFORD, BEEAWARE.

REINEGRCED-PAPElR ARTICLE.

Specification of Ze'tfiers Patent.

Patented July 30, 1918.

Application filed November 5, 1917. Serial No. 200,445.

T 0 all whom it may Conn 0'21:

c it known that 1. PM L lomwnuu, a. citizen of the United States,residing at Milford, in the count;' of Sussex anrl Slate of elaware, hav0 invented vermin new and useful lmprovemmits in Loinforced-PaperArticles; and I do hereby declare the fob lowing to he a full, rice 3and mart (loucription of the invention, such as: will enable othersskilled in the art in \vhieh if appertains to make and use the sumo.

his invention relate: to gun-i=1, anal paw ticularly to various shapedarlh'h'w whirls may be made of paper, and has for one oh jest, theprovision of a container in receive articles of various nainren, suchfor instance, as food products, chemicals aml (livers other Substances,capable of being packed and marketed in metallic or glaou vonluim-rs orcontainers of various other mulolla la, um oi? the objects of thepresent in wniion be" provide for the crmslrmlion oi of a material morerapidly auiz' la sively made, than possible when ll! earthenware orother material in at.

Another object of the present invrntion is to improve the conslruotionof paper, an ill a paper of greater strength, rini hfxv, iilifidurability 1S obtain-o l, and 'lifll 11* up: or proof by virtue oflluumtr which ii is construchul.

t is another ohjovi of the mjsu-ni inn-ntion to provide a paper which,ivh onion WaiGIPI'H l by lhr unwound of a boil oi Cementilimas materialbetween tho mirl'm-os 0f the Shel-i of paper. may aim have appliml to iton either or hull; of iii surl'ui-ra applicniions of various inatcrialaas for inflfnnoe, paraliin, rosin, ehelruor any ulhor nuitnhlo orappropriaio \v'alw' r gwllr'nl hi h may be: (lcterminml by the nature of{he routvnw of" the conl'ainor in which Ihe paper nim'h may be utilized.

The invention PUHSlSlH inanufzoaure of paper, the a rtvielo are iliustuing drawing, in which.

Figure 1 is a ,guirx-poeriivw w'lir'vv m" i tainer partly broken aw} inshow the runstrnction of the Wall,

Fig. 2 is a perspecli-re vi the material partly broken :1 construction,and

Fig. 3 is a detail no fragment of :1 piece W oi a sheet of ay in showthe nz-uing that embodiment of the invention employing exterior andinterior coating.

t is desirable to substitute for various i'ypes of containers which aremade of tin, glass, earthenware or other substances, conminers of lessexpensive material anrl which will at the same time, have the desiredproperties of strenglh, durability, impermeability and rigidity notpresent in containers made of paper or fiber as now marketed, and which:Hu impregnated with parnllin or other Wax-likeor appropriatesubstances, having the object of rendering (he material more or lowimpervious to the nmterial carried in iih' loulninors formed of thepaper or fiber lslfli'lv'. onnunvrs made of paper or iihor sounprognalml are not only defective Ii] ihr inuilvl' of durability andstrength, but filo-y also will gradually absorb the moi iuro oi or beHllW'lflll hr the (:onlvnfs of the e-zmfninrii To owrronn- (how various(llvols and provide a roniaiio i' or the like of paper or lilu'r Sluehol' {he (lesirml strength and righlil anal one \vhirh will al o heimporviolm, my present invention c-ontemplalcs he manulEu-iurr (ii anarticle, such, for in- Hlnnw as u roulaincr, by employing a sullnllll'nuznlwr of layer or ,shcola of paper, for inuiaiu-r, as illuslz'atmi atFig. l, in \vhirh 2 in an inncr layer of paper or other suitable nlilizrin in the nature of an artiu'ur'h l i i use anal iholrloro, will lfiil'l nilixia runu-nlilimn maiorial :h has no? nly the ilnsirml valor-proofllljf. and .jlil'llfi lfl'illlrl properties. but also is devoid of anagcnis which will be dolele- Viv-us oiljlzvi in {he nlul-u'ial of whichthe ruin minor or ariivlr in manul'artnrml, but also will no? la harmfulor injurious l; the subsiaimra placed in ihn package or container, and owhich lnunuul o1" beeon'iing softened upon lin uppliralion of heat, asglue, Wax, parnfiia and various other materials will, instead, harden uinormal or increased temperaiin F6314,

N an exnn'u'ha of he mineral, neutral,

Elie law-r which may be Introafiie Flock of which the containerutilized.

is to be formed I may employ magnesium oxid and silex in about equalproportiotn which are mixed and reduced to plastic condition by theaddition of a solution of mag? nesium chlorid of approximately 31)degrees Baum. As above indieated, in the practiee of the method ofproducing the article (it whatever shape it may be. \ihether of sheetform or other shape, for instan e, to pro duce a container, the plasticcement. in introduced between the layers of the paper or fiber of whichthe article is to he made and with which any suitable number may be Thesheet or shaped article built up by the above described method isallowed to harden when it is. then ready for use. hile the cementitioualayer in the body of the article will harden at ordinary temperature? Ihave found that a temperature of about 100 degrees l ahrenhcit gives a\"ei'y satisfairtony result. the lltll'llt-lllllg taking place morerapidly than at lower tenipei'te tures, but for the purpose. of morerapidly hardening the material the article is subjected to a temperatureapproximately 335:6! degrees l ahrenheit, at which the cement willharden in about live minutes, the time varying of courae a cording tothe thiehnesa oi the material, the shape of the article and the mannerof the application of the heat.

This mineral cement. is preferably applied as an intmmediatc or anintervening layer or body, so that when desired, the surfaces of thearticle may he coated with a ny other substance. such for instance, asrosin. she! lac. pa rattin or any mixtures thereof or other desir dmaterial, and as shown in Fig. ii, the inner and outer surfaces of the\all forming; the container are indicated at. 5 and ii. 31b be ing socoated. the nature of which will be (le termined by the use of thearticle, and it will he understood of course, that the interim andexterior coatings may he of diiicrent substances.

-The article may be made of any number of layers of paper or fibrousmaterial as indicated in Fin. 2 in which eertain oi the layers are shownas perforated or of foraminous material as indicated at, 7. in this format the Inannl'actured. article, the cemcntitioua material may be appliedto both ides of the intermediate perforated layer or layers and willtill the interstices the-rent and in thin Jay. greatly reinforce andstrengthen the article.

The words "artiric of manufacture are. used in this Elli lfii'ilklfiiland in the claims to refer to that. pnaluet n! Whatever ahape it may bewhich eonstrnetml areording to the steps: of the method alawc. detincdand wing materials inning the. propertiea herein set forth.

\i'hat is claimed is:

1. An article of nnuultaeture comprising paper havina a neutral,mineral. waterpronting reinl'orre i-onais-iiing of magnesium nXid andsilex mixed with magnesium ehiorid.

2. An article of manui'aeture of paper having included therein at'lll'jllitiilifllh, liliix' erah reintorring material, and an externalapplicati n at waxy aatera-epellent.

3. An arti l of manntacture of paper havingincluded therein a.eeinentitions mineral nniteriai. and having on it walls an applicationwaxy water-repellent.

4-. An 'h: at inanutzu'turc of paper reinforced by an it lndeti cementormatting of magnesium oxy cliinrid.

An ariirle of manufa ture, eomposed of paper hayingan intermediate layerof magnesium maid and aiiex reduced to plastic state by magnesiumehlorid.

t'. An article of nnmullurturo composed of laminated. perforate andinlpertorate vQnects with an ass fiated hotly ot' (fifilltllltlliOlIHmaterial {animating of magnesium oxychlornt.

T. An a ticle iii, numutrn'tnre nl paper having inclinied therein ajttlttfl'll'lll 'ttlt with oral material, and an external application ofwaxy ltviitit'lttr y;atcra'cpeilent.

ln teetinniny whereof I ai'tix my igznature.

